four

英 [fɔː(r)]

美 [fɔːr]

n. 四; 四个; 第四四的; 四个一组之物

Collins.5 / BNC.184 / COCA.247

习惯用语

on all fours

these four walls

（用于叮嘱保守秘密）到此为止
used when you are talking about keeping sth secret
Don't let this go further than these four walls (= Don't tell anyone else who is not in the room now) .
走出屋外这事就不要再谈了。

四
4
四个人（或事物）的一组
a group of four people or things
1. to make up a four at tennis
  凑成四个人打网球
2. a coach and four (= four horses)
  四匹马拉的四轮大马车
得四分的一击
a shot that scores four runs
四人赛艇的全体成员；四人赛艇
a team of four people who row a long narrow boat in races; the boat that they row

NUM (数字)4
Fouris the number 4.
1. Judith is married with four children.
  朱迪丝已经结婚了，有四个孩子。
N-COUNT (板球中)得 4 分的一击
In cricket, if a player hits afour, they score four runs by hitting the ball along the ground so that it crosses the boundary at the edge of the playing area.
1. Taylor hit 13 fours and batted for 140 minutes.
  泰勒打了 13 个 4 分球，击球时间为 140 分钟。
四人赛艇
Afouris a narrow racing boat that is rowed by a team of four people.
PHRASE 四肢着地;趴着
If you areon all fours, your knees, feet, and hands are on the ground.
1. She crawled on all fours over to the window.
  她爬到窗边。

noun

a playing card or domino or die whose upward face shows four pips
Synonym:four-spot
the cardinal number that is the sum of three and one
Synonym:4IVtetradquaternquaternionquaternaryquaternityquartetquadrupletfoursomeLittle Joe

adj

I think I got there about four and left about half past.
我想我是4点钟左右到达那里，大约半个小时后离开的。
He's the shortest of four brothers.
他是四兄弟中个子最矮的。
He spent four years studying pharmacy.
他花了4年时间学习药剂学。
Sampras reached the last four at Wimbledon.
桑普拉斯杀入了温布尔登四强。
Judith is married with four children.
朱迪丝已经结婚了，有四个孩子。
I bid four diamonds.
我叫四个方块。
He's already been gone four hours!
他已经离开4个小时了！
Sixteen teams are taking part, divided into four groups
有16个队参加，分为4组。
We saw the therapist four times, and the children have now settled down.
我们去看了四次治疗专家，现在孩子们已经稳定下来了。
There have been four hundred escapes this year, showing up the lack of security.
今年已发生400起越狱事件了，这充分显示了安全措施的不到位。